[Bug 67846] Using 2 screens impossible again with gen3

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=67846

--- Comment #3 from sergio.callegari at gmail.com ---
Dear Chris,

thank you for confirming that this is a unity issue. I will now try to
propagate this info to the unity developers. Would be glad if you could provide
a couple more details for the unity developers, assuming that they are willing
to help.

1) Any clue why things mostly work when manually starting things with
xrandr --output VGA1 --auto --above LVDS1
and do not work when unity auto-configures the external monitor or one manually
configures it with
xrandr --output VGA1 --auto --left-of LVDS1
that is approximately equivalent to what unity seems to be doing?

2) Any clue why when unity/compiz are doing autoconfigure the external monitor
I get
intel_do_flush_locked fail no space left on device

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